@b0rk Don't be too dogmatic. These days they're all changeable, and some of us change them. I'm fond of DEL as interrupt, not just because it's historic but because it's a simple single key to smash. Sticking to @ as my kill character is more obstreperous. I am no stick-in-the-mud, though: BS for erase since I started using Unix.

I happen to know that ken used # for erase as late as the latter 1980s.